Wire-coiling machine.



v E. S. LYONS. WIRE COILING MACHINE.

APPLICATION FILED :uupzz, 1914.

Patented July 25, 1916.

S. L w m. 6 w d E3 Lioness.

r are i EDGAR SAMUEL Lvoivs, or .rcnonro, ONTARIO, cannon, ASSIGNOR, BY MESNE ASSIGNMENTS, 'ro rr-rn MQCASKEY nneis'rnn COMPANY, (mconroarirrnn rn 1914,) or ALLIANCE, OHIO, a. conronerron on OHIO.

V7IRE-OOILING MACHINE.

Specification of Letters Patent. Patigntefl July 25 1916 Application filed June 22, 1814. Serial No. 846,487.

To all whom it may concern: I

Be it known that I, EDGAR SAMUEL Lyons, a British subject, and resident of the city of Toronto, in thecount'y of York and Province of Ontario, Dominion ofCanada, have invented certain new and useful Improvements in Wire -Coiling Machines; and I hereby declarethat the following is a full, clear, and exact description of the same.

My invention relates to a machine for forming spring coils at the ends of two opposite sides of a wire clip and bending the ends of these coils reversely to the direction of their spirals to form attaching members for conveniently securing the clips to a holder and tensioning the coils.

.The apparatus by which this is accomplished consists of means for holding a wire blank, and means for coiling two sides of the same, said coiling means including coil shapers, and winders revoluble in one direction for twisting the wire around said shapers for the formation of the spirals, and benders automatically movable lengthwise of the coils, to engage with the ends of the wire when the revolution oi the winders is reversed whereby the winders can bend the ends of the coils reversely to the direction of the spirals, for the formation of the attaching members by which the clips are secured to the holder.

For an understanding of my invention, reference is to be had to the following description and to the accompanying drawin gs, in which:

Figure 1 is a perspective view of the wirecoiling machine with the clip bed in a reclined position and a partially formed clip thereon; Fig. 2 is a similar view to Fig. 1, with the clip bed in an upright position to hold the clip during the formation of the coils; Fig. 3 is a detail view of the hookshaped end of one of the heel benders; Fig. 4 is a detail view of a clip. prior to the formation of the coils; Fig. 5 is a view of the clip shown in Fig. 4 after the, forming of the coils but prior to the bending of the attaching members reversely to the spirals; and Fig. 6 is a view of the finished clip.

Hinged to the standard a is the clip bed 2) to be turned into either a reclined position as shown in Fig. 1, or into anupright position as shown in Fig. 2, and projecting from opposite sides of the standard a, parallel to the face of the bed 6, are two coil shapers 0. Opposed to each coil shaper is a winder a3 fixed on a crank axle a, each winder (Z and its axle 6 having a central bore 7 to receive its respective coil shaper c therein. The axles c are mounted to slide lengthwise in bearings g and their outer ends are provided with crank handles it by which the winders are rotated. On the bed a are retaining pins e' by which the wire blank m is held in position during the formation of the coils j. Fulcrumed to the standard a, above the coil shapers c, are the bendersic tensioned by a spring Z, the benders 70 being provided with hook-shaped ends Z located above the coilshapers c and movable toward and away from the standard a.

In the operation of the machine theclip bed Z) is lowered into the reclined position shown in Fig. 1, and the wire blank m, shown in l, is placed upon the bed around the retaining pins 11 with the ends of the wire blank located above and extending beyond the coil shapers c. When the blank is correctly placed upon the bed I), the latter is turned from the position shown in Fig. 1 tothat shown in Fig. 2, in which position the wire blank is securely clamped between the standard and the bed. When the bed is in the position shown in Fig. 2, the winders (l are moved in the direction of the standard until their winding pins cl engage the sides of the wire blank m. The winders (Z are then rotated in one direction to twist the sides of the wire blank m into coils j around the coil-shapers c, the turning of the winders in this direction being continued until the formation of the coils is completed, as shown in Fig. 5. moved in the direction of the standard a they engage the hook-shaped ends Z of the benders 7c and move these hook-shaped ends against the standard a, or if the standard is grooved, as shown at a in Fig. 1, they move the hook-shaped ends Z into these grooves, so that they will not interfere with the formation of the initial spirals of the coils j during the rotation of the winders in the coil-forming direction. As the spirals are formed the coils j automatically press the winders in the direction of the bearings g,

and as the winders move in this direction,

the-hook-shaped ends Z of the benders it, under the influence of the spring Z, autolVhen the winders (Z are matically follow them and occupy the position shown in full lines in Fig. 1, so that when the formation of the coils is completed their hook-shaped ends Z will be positioned to engage the ends m of the wire blanks m when the rotation of the winders is reversed to form the attaching members 0, which, as shown-in Fig. 6, are reversed with respect to the direction of the spirals.

To enable the spirals to readily clear the benders during the formation of the coils the sides of the hook-shaped ends Z opposed to the direction of the spirals are beveled, as shown at Z, Fig. 3, and when the spirals engage these bevels, during the formation of the coils, they move the benders inward toward the standard a' and pass ceive the ends of the coils during the reverse rotation of the winders.

To hold the Wire blank against the coil shapers 0 while the clip bed is being turned from a reclined position to an upright position the standard a is provided with retaining pins 0 to engage the top of the blank sides; and to maintain the clip bed in its upright position until lowered again, the standard a is provided with a spring latch a which engages with a keeper 3 attached to the clip bed.

Having thus fully described the nature of my invention, what I claim as new and desire to secure by Letters Patent, is:

'1. A wire coiling machine comprising means for holding a wire blank, means for coiling the ends of said blank, and automatically positioned means cooperating with the coiling means to bend the ends of the coils reversely to the direction of the spirals.

2. A wire coiling machine comprising means for holdmg a wire blank, means for 0011- mg two sldes of the same, said coiling means including coil shapers and winders revolu-i ble 1n one dlrectlon for twisting the wire around said, shapers for the formation of the coils are tensioned and secured to a holder.

3. A wire coiling machine comprising means for holding a wire blank and means for coiling two sides of the same, said coilmg means mcludmg c011 shapers and wind- Oopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

ers revoluble in one direction for twisting the wire around said shapers for the forma tion of the coils, and spring tensioned bendto the direction of the spirals for the formation of the attaching members by which the coils are tensioned and secured to a holder.

4. A wire coiling machine comprising means for holding a wire blankand means for coiling two sides of the same, said coiling means including coil shapers and winders revoluble in one direction for twisting the wire around said shapers for the formation of the coils, and spring tensioned benders fulcrumed to the apparatus, having hook-shaped ends automatically movable lengthwise of the coils to engage with the ends of the wirewhen the revolution of the winders is reversed, whereby the winders can bend the ends of the coils over said hook-shaped ends of the benders reversely to the direction of the spirals for the formation of the attaching members by which the coils are tensioned and secured to a holder,

the sides of said hook-shaped ends opposed tothe direction of the spirals being beveled so that the wire will displace the benders andpass them without difiiculty during the formation of the coils.

5. A wire coiling machine comprising means for holding a wire blank, means for coiling it, and benders automatically movable lengthwise oi the coils toengage with the ends of the blank when the revolution forming the coils, and benders pivoted to the machine to automatically follow the increasing length .of the coils and engage with the ends of the blank when the revolution of the coiling means is reversed.

7. A wire coiling machine comprising means for holding a wire blank, means for forming'the coils, and benders pivoted to the machine to automatically follow'the increasing length of the coils and engage with the ends of the blank when the revolution of the coiling means is reversed, each of said benders having a hook-shaped end with a wire retaining recess therein.

Toronto, April 30th, A. D., 1914.

EDGAR SAMUEL LYONS. I

\Vitnesses:

. CHAS. H. RICI-IES,

STANLEY RIoHns.

Washington, D. G. 

